Clinical trials
Cardiac clinical trials
Below are recruiting cardiac clinical trials, each written for real people, not researchers. We’re tracking 1,288 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05595954Recruiting
Personalized anesthesia plan to protect the brain during heart surgery
This trial studies whether tailoring anesthesia and monitoring the brain’s blood-flow control during heart surgery can improve neurological outcomes (brain-related function and recovery). It may help by guiding anesthesia in a more individualized way and checking how well the brain is protected during the operation.
BaselAges 65 years+ - NCT05519046Recruiting
Test a heart pacing treatment for Chagas-related heart failure
This study looks at a heart treatment called cardiac contractility modulation in people with Chagas heart disease who have moderate symptoms and weak heart pumping. It aims to see whether this therapy improves heart function and related outcomes in the right patients.
São Paulo, São PauloAges 18–75 - NCT05489549Recruiting
Study of heart amyloid risk in people with TTR gene variants
This study looks at people who carry certain TTR gene variants, which can cause a specific type of heart amyloid buildup. It also includes people with symptoms, to understand how the condition develops and how it may be monitored.
New York, New YorkAges 30–80 - NCT05391737Recruiting
Study of fluid in the lungs after open-water swimming
This study looks at what happens in the lungs after open-water swimming. It may help doctors better understand and recognize “swimming-induced lung fluid,” especially by using lung ultrasound when symptoms happen.
FalunAges 18 years+ - NCT05373940Recruiting
ICD placement to prevent sudden heart death in people over 70
This study looks at placing an ICD, a device that can stop dangerous heart rhythms, to help prevent sudden cardiac death. It is for people over 70 with specific heart function and heart failure symptoms.
Aix-en-ProvenceAges 70 years+ - NCT03261089Recruiting
Predicting brain outcome after cardiac arrest, reducing bias
This study looks at how to predict brain recovery after certain types of cardiac arrest. It aims to improve decision-making so people are not misjudged due to “self-fulfilling prophecy.”
San Francisco, CaliforniaAges 18–89 - NCT05164744Recruiting
MRI study of heart tissue changes after COVID-19
This study uses a heart MRI to look for leftover (healing) changes in heart tissue after COVID-19. It may help researchers better understand what ongoing heart effects can happen after infection.
Brooklyn, New YorkAges 18 years+ - NCT05142124Recruiting
Registry of out-of-hospital cardiac arrest cases
This study collects information about people who had a cardiac arrest outside the hospital, where it is thought to be from a heart or blood-vessel cause. It helps researchers understand what happens and may improve future care, even though it is mainly about collecting data.
Berlin, State of BerlinAges 18 years+ - NCT05139797Recruiting
AI-guided heart ultrasound screening for suspected amyloidosis
This study tests whether an artificial-intelligence system can help decide who should get a special heart workup for a rare disease called cardiac amyloidosis. If you have signs that make doctors suspect this, the AI-guided ultrasound screening may help find it sooner.
Los Angeles, CaliforniaAges 18 years+ - NCT05010109Recruiting
Testing heart safety and fitness during lung cancer chemoradiation
This study looks at how lung cancer treatment affects the heart and whether a “walking test” and blood tests can track heart fitness and injury. It may help by improving how cancer therapy is planned and monitored for heart safety.
Houston, TexasAges 18 years+ - NCT04880265Recruiting
Study heart rhythm changes after open-heart surgery
This study looks at how often and how long an irregular heartbeat (atrial fibrillation) happens after planned open-heart surgery. It aims to better understand the “burden” of this rhythm problem, which could help improve care for future patients.
Boston, MassachusettsAges 20–90 - NCT04859270Recruiting
Rehab support for survivors after cardiac arrest
This study looks at a “whole-person” support plan for people who survived a non-traumatic cardiac arrest. It aims to improve the survivor’s health and also help support family members as they recover.
TaipeiAges 20 years+ - NCT03753412Recruiting
Rehab program for adults after ICU recovery on ECMO
This trial looks at a recovery and rehabilitation approach for adults who were very sick and needed a machine called ECMO to support breathing and heart function. It may help people regain strength and function after a severe ICU illness.
LondonAges 18 years+ - NCT04843683Recruiting
Stereotactic radiation treatment for abnormal heart rhythms
This trial studies using a precise type of radiation (stereotactic ablative radiotherapy) to treat abnormal heart rhythms when medicines or prior procedures haven’t worked. It may help by targeting the heart area causing the rhythm problem without doing another invasive ablation.
Toronto, OntarioAges 18 years+ - NCT04701723Recruiting
Breathing training to help after trauma stress
This pilot study tests whether “cardiac coherence” breathing exercises can help prevent ongoing (chronic) post-traumatic stress disorder after a recent traumatic event. It’s meant for people who are newly dealing with an acute stress reaction, soon after the event.
Saint-PaulAges 18 years+ - NCT04750798Recruiting
Monitoring approved catheter devices during heart rhythm ablation
This study is observing people with common abnormal heart rhythms who are already scheduled for a catheter ablation using an approved Biosense Webster catheter. It aims to better understand real-world use and outcomes, without testing a new drug.
GrazAges Any age - NCT04667494RecruitingPhase 4
Ultrasound treatment for heart amyloidosis
This trial studies whether ultrasound therapy can help people with amyloidosis that affects the heart. It’s aimed at improving heart-related outcomes in AL or transthyretin (ATTR) cardiac amyloidosis.
Boston, MassachusettsAges 18–90 - NCT00181233Recruiting
MRI imaging to assess sudden heart risk factors
This study tests heart imaging (using MRI) to better identify factors linked to sudden cardiac death risk. You may be eligible if you have reduced heart pumping ability and are planning a specific heart device to prevent dangerous heart rhythms.
Baltimore, MarylandAges 18 years+ - NCT04458883Recruiting
Cardiac MRI test in people with prior heart attack
This study uses special heart MRI scans to improve how heart images are made and interpreted. You may be asked to undergo MRI testing to help compare scans in people with a past heart attack and healthy volunteers.
Aberdeen, AberdeenshireAges 20 years+ - NCT04284839RecruitingPhase 3
Blood thinner pills vs warfarin after heart surgery
This trial compares two ways to prevent blood clots after open heart surgery: a “direct oral” blood thinner pill versus warfarin (a vitamin K antagonist). It may help find the safest and most effective option for people who develop atrial fibrillation after surgery.
Fitzroy, VictoriaAges 18 years+ - NCT04374799RecruitingPhase 3
Heparin vs placebo during cardiac catheterization
This trial tests whether giving heparin (a blood thinner) during a specific type of heart procedure is safer and works better than not giving it. It focuses on patients where the blood supply in the hand’s artery connection is functioning properly.
Hamilton, OntarioAges 18 years+ - NCT04024917Recruiting
Cardiac coherence training to reduce anxiety before abdominal surgery
This trial tests whether “cardiac coherence” breathing/relaxation practice can lower anxiety in people with peritoneal cancer who are scheduled for a major surgery. It may help by calming stress before and around the operation.
Montpellier, HéraultAges 18 years+ - NCT04241328Recruiting
Cardiac surgery registry for patients who used a Medtronic device
This study tracks patients who had cardiac surgery using a specific Medtronic heart-surgery device. It mainly collects real-world data to help understand outcomes, and you may be included if you give consent and are not in another device/drug study that could affect the results.
ViennaAges Any age - NCT00733590Recruiting
Study after ICD generator replacement for heart attack patients
This study follows people who had a prior heart attack and later received a replacement ICD (a device that helps prevent sudden dangerous heart rhythms). It is observational, meaning it mainly looks at outcomes and device-related information rather than testing a new drug.
Washington D.C., District of ColumbiaAges 18–85
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Common questions
- Are there clinical trials for cardiac?
- Yes. Clin2 currently lists 1,288 recruiting cardiac studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a cardiac trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a cardiac trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.